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Related Concept Videos

Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

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Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
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When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
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Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
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All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
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A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):
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Related Experiment Video

Updated: Jul 22, 2025

Characterization of Amyloid Structures in Aging C. Elegans Using Fluorescence Lifetime Imaging
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Aggregation-Induced Emission (AIE), Life and Health.

Haoran Wang1,2, Qiyao Li1,3, Parvej Alam4

  • 1School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong 518172, China.

ACS Nano
|July 24, 2023
PubMed
Summary
This summary is machine-generated.

Aggregation-induced emission (AIE) luminogens offer bright, stable, and biocompatible tools for biological imaging and disease diagnostics. This review highlights AIE

Keywords:
aggregation-induced emissionbioimagingbiomedical applicationcombined therapydetectionluminescent materialmonitoringphototheranosticsprecision medicine

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Area of Science:

  • Biomedical optics
  • Materials science
  • Chemical biology

Background:

  • Luminescence is crucial in modern medicine for diagnostics and treatment.
  • Aggregation-induced emission (AIE) is a novel luminescence phenomenon with unique properties.
  • AIE luminogens offer enhanced brightness, photostability, and biocompatibility compared to traditional dyes.

Purpose of the Study:

  • To comprehensively review the applications of AIE luminogens in life and health sciences.
  • To summarize AIE applications in biological imaging, disease diagnosis, and analyte detection.
  • To discuss current challenges and future prospects of AIE in biomedical fields.

Main Methods:

  • Literature review of AIE luminogen applications in biological and medical contexts.
  • Analysis of representative studies showcasing AIE in imaging, diagnostics, and therapeutics.
  • Discussion of AIE properties relevant to biological systems, such as brightness and photostability.

Main Results:

  • AIE luminogens are effective for imaging biological structures and physiological processes.
  • AIE shows promise in disease diagnosis, treatment monitoring, and targeted drug delivery.
  • AIE enables sensitive detection and monitoring of specific biological analytes.

Conclusions:

  • AIE luminogens represent a powerful and versatile class of probes for biomedical applications.
  • Further research into AIE is expected to drive innovation in medical imaging and diagnostics.
  • Interdisciplinary collaboration can accelerate the translation of AIE technology into clinical practice.